MC3479PG ON Semiconductor, MC3479PG Datasheet - Page 5

• Manufacturer Part Number: MC3479PG
• Description: IC DRIVER STEPPER MOTOR 16DIP
• Manufacturer: ON Semiconductor
• Type: Stepper Motor Controllerr

Specifications of MC3479PG

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 1
• Current - Output: 350mA
• Voltage - Supply: 7.2 V ~ 16.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Product: Stepper Motor Controllers / Drivers
• Supply Current: 75 mA
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: MC3479PGOS

General
stepper positioning motor in applications such as disk drives
and robotics. The outputs can provide up to 350 mA to each
of two coils of a two−phase motor. The outputs change state
with each low−to−high transition of the clock input, with the
new output state depending on the previous state, as well as
the input conditions at the logic controls.
function of the resistor connected between Pin 6 and ground
(see section on Bias/Set operation). Whenever the outputs
The MC3479 integrated circuit is designed to drive a
The maximum sink current available at the outputs is a
F/HS,
CW/CCW
Inputs
Clk
Phase A
Output
B/S
L1 − L4
Outputs
R
3.0 V
B
0
0
3.0 V
I
BS
t
PCD
1.5 V
PW
CLKH
6.0 V
Transistors
To L3, L4
I′
BS
Current
Drivers
Figure 4. Clock Timing (Refer to Figure 2)
Logic
and
APPLICATION INFORMATION
1.5 V
PW
Figure 5. Output Stages
CLKL
http://onsemi.com
t
su
1.5 V
CW / CCW
V
MC3479
M
t
h
5
t
PHLA
F/HS
Outputs
Figure 5), which when connected to a two−phase motor,
provide two full−bridge configurations (L3 and L4 are not
shown in Figure 5). The polarities applied to the motor coils
depend on which transistor (Q
which in turn depends on the inputs and the decoding
circuitry.
are to be in a high impedance state, both transistors (Q
Q
Q
Q
L
H
L
The outputs (L1−L4) are high current outputs (see
Logic Decoding
of Figure 5) of each output are off.
Inputs
Circuit
L1
t
PLHA
Motor Coil
Clk
OIC
Parasitic
Diodes
V
D
L2
Note: t
input signals are p 10 ns.
H
or Q
r
, t
f
(10% to 90%) for
Q
Q
L
H
L
) of each output is on,
H
and